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Question

The layer of atmosphere which protects the living beings from harmful rays is

A
Mesosphere
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B
Ozonosphere
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C
Thermosphere
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D
Both B and C
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Solution

The correct option is D Both B and C
Ozone is concentrated mainly in the stratosphere, where it absorbs solar radiation, protecting Earth's living organisms from the ultraviolet light from the sun. UV radiation is harmful to DNA; without the atmosphere's ozone, living organisms could not exist and thrive as they do now. The area in which ozone is concentrated in stratosphere is called the ozonosphere, So the correct answer is 'Both B and C'.

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